If all of geologic time were one football field (300 ft.) then the following event took place at the last .00000091 ft. on the field.

14

Brenna as a baby
Baby Jordan

Event #

Your Analogy Value

MYA

3

If all of geologic time were a football field (300 ft.) then the following event took place at .0004 ft. on the field.

.006

Writing is developed in Sumeria

Writing in Sumeria.

Event #

Your Analogy Value

MYA

4

If all of geologic time were one football field (300 ft.) then the following event took place at .0008 ft. on the field.

.012

Homo Sapiens have domesticated dogs in Kirkuk, Iraq.

The family tree of domesticated dogs

Event #

Your Analogy Value

MYA

5

If all of geologic time were one football field (300 ft.) then the following event took place in between the last .003-.0008 ft. on the field.

.04-.012

Homo Sapiens enter Australia from southeastern Asia and North America from northeastern Asia.

Homo sapiens enter Australlia

Event #

Your Analogy Value

MYA

6

If all of geologic time were one football field (300 ft.) then the following event took place in between the last .01-.002 ft. on the field.

.2-.03

Homo Sapiens neanderthalensis exist.

Neanderthalensis started to exist

Event #

Your Analogy Value

MYA

7

If all of geologic time were one football field (300 ft.) then the following event took place in between the last .07-.03 ft. on the field.

1-.5

Homo erectus tames fire.

Homo erectus tames fire

Event #

Your Analogy Value

MYA

8

If all of geologic time were one football field (300 ft.) then the following event took place in between the last .1-.0007 ft. on the field.

2-.01

Most recent ice age.

The recent ice age

Event #

Your Analogy Value

MYA

9

If all of geologic time were one football field (300 ft.) then the following event took place on the last .2 ft. of the field.

3.5

The Australopithecus Lucy walks the Earth.

Lucy walks the Earth

Event #

Your Analogy Value

MYA

10

If all of geologic time were one football field (300 ft.) then the following event took place at .3 ft. on the field.

4

Development of hominid bipedalism.

Hominid bipedalism

Event #

Your Analogy Value

MYA

11

If all of geologic time were one football field (300 ft.) then the following event took place at 3.3 ft. on the field.

50

Primitive monkeys have evolved.

The first monkeys developed

Event #

Your Analogy Value

MYA

12

If all of geologic time were one football field (300 ft.) then the following event took place at 3.9 ft. on the field.

60

Rats, mice, and squirrels have evolved.

Rats, mice, and squirrels developed

Event #

Your Analogy Value

MYA

13

If all of geologic time were one football field (300 ft.) then the following event took place at 5.9 ft. on the field.

90

Modern sharks have evolved.

The first shark developed

Event #

Your Analogy Value

MYA

14

If all of geologic time were one football field (300 ft.) then the following event took place at 9.5 ft. on the field.

145

Archaeopteryx walks the Earth.

Archaeopteryx developed

Event #

Your Analogy Value

MYA

15

If all of geologic time were one football field (300 ft.) then the following event took place at 13 ft. on the field.

200

Pangaea starts to break apart.

Pangaea splits apart

Event #

Your Analogy Value

MYA

16

If all of geologic time were one football field (300 ft.) then the following event took place at 14.7 ft. on the field.

225

Modern ferns have evolved.

The first fern developed

Event #

Your Analogy Value

MYA

17

If all of geologic time were one football field (300 ft.) then the following event took place at 18.3 ft. on the field.

280

Beetles and weevils have evolved.

Weevils and Beetles developed

Event #

Your Analogy Value

MYA

18

If all of geological time were one football field (300 ft.) then the following event took place in between 22.8-19.6 ft. on the field.

350-300

Rise of the amphibians.

Rise of the Amphibians.

Event #

Your Analogy Value

MYA

19

If all of geologic time were one football field (300 ft.) then the following event took place at 24.5 ft. on the field.

375

The Appalachian mountains are formed via a plate tectonic collision between North America, Africa, and Europe.

Event #

Your Analogy Value

MYA

20

If all of geologic time were one football field (300 ft.) then the following event took place at 28 ft. on the field.

430

Waxy coated algae begin to live on land.

Event #

Your Analogy Value

MYA

21

If all of geologic time were one football field (300 ft.) then the following event took place in between 33.7-33.6 ft. on the field.

517-515

Fossilization of the Burgess Shale.

Event #

Your Analogy Value

MYA

22

If all of geologic time were one football field (300 ft.) then the following event took place in between 34.4-34.3 ft. on the field.

528-526

Fossilization of the Chengjiang site.

Event #

Your Analogy Value

MYA

23

If all of geologic time were one football field (300 ft.) then the following event took place in between 37.8-35.5 ft. on the field.

580-545

Fossils of Ediacaran organsims are made

Event #

Your Analogy Value

MYA

24

If all of geologic time were one football field (300 ft.) then the following event took place in between 97.8-39.1 ft. on the field.

1500-600

Rise of the multicellular organisims

Event #

Your Analogy Value

MYA

25

If all of geologic time were one football field (300 ft.) then the following event took place at 104.3 ft. on the field.

1600

The last reserves of reduced iron are used up by the increasing atmospheric oxygen--last banded iron formations

Event #

Your Analogy Value

MYA

26

If all of geologic time were one football field (300 ft.) then the following event took place at 156.5 ft. on the field.

2400

Rise in the concentration of oxygen molecules stops the deposition of uraninites (since they are soluble when combined with oxygen) and starts the deposition of banded iron formations

Event #

Your Analogy Value

MYA

27

If all of geologic time were one football field (300 ft.) then the following event took place in between 228.3-182.6 ft. on the field.

3500-2800

Beginning of photosynthesis by blue-green algae which releases oxygen molecules into the atmosphere and steadily works to strengthen the ozone layer and change the Earth's chemically reducing atmosphere into ac chemically oxdizing zone

Event #

Your Analogy Value

MYA

28

If all of geologic time were one football field (300 ft.) then the following event took place at 260.9 ft. on the field.

4000

Bombardment of the Earth by planetesimals stops

Event #

Your Analogy Value

MYA

29

If all of geologic time were one football field (300 ft.) then the following event took place at 280.4 ft. on the field.

4300

Melting of the Earth due to radioactive and gravitational heating which leads to its differentiated interior structure as well as outgassing of molecules such as water, methane, ammonia,hydrogen,nitrogen, and carbon dioxide

Event #

Your Analogy Value

MYA

30

If all of geologic time were one football field (300 ft.) then the following event took place at 300 ft. on the field.

4600

Formation of the (approximately) homogeneous solid earth by planetesimal accretion.

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